chkno

• LineageOS Dialer app
• LineageOS Messaging app

Check out Winston Moy's video on making a topographic map of Colorado. They mention these data sources:

• The one you already found
• The U.S. Geological Survey (USGS)
• Terrain2STL, which uses Consultative Group for International Agricultural Research - Consortium for Spatial Information (CGIAR-CSI) data

OpenSCAD's surface primitive can turn height maps into STL files.

You may have to trim the state boundaries yourself. :(

Any sane compiler will simplify this into

    function cosmicRayDetector() {
      while(true) {
      }
    }

C++ may further 'simplify' this into

    function cosmicRayDetector() {
      return
    }